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參數(shù)資料
| 型號： | NTE1503 |
| 廠商： | NTE Electronics, Inc. |
| 元件分類： | LED驅(qū)動器 |
| 英文描述： | Integrated Circuit 5-Step LED Driver Circuit for Logarithmic Response |
| 中文描述： | 集成電路5步LED驅(qū)動電路的對數(shù)響應(yīng) |
| 文件頁數(shù)： | 1/2頁 |
| 文件大小： | 20K |
| 代理商： | NTE1503 |
NTE1503
Integrated Circuit
5–Step LED Driver Circuit
for Logarithmic Response
Description:
The NTE1503 is an integrated circuit in a 9–Lead SIP type package designed for driving 5–LED bar
graphs or dot displays so that the LEDs may light logarithmically (dB) for input signal. Brightness of
the LEDs can be controlled by using the output current adjustment pin provided.
Features:
5–LED Bar Graph or Dot Display Drive
Logarithmic Response with Respect to Input
Brightness Externally Adjustable
High Output Current, Suitable for Green LED Drive
Lamp ON/OFF Hysteresis, No Flickering by Noise
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Voltage, V
8–5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load Current Set Input Voltage, V
7–5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Voltage (Note 1), V
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply Current, I
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load Current Set Input Current, I
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Current, I
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperatuere Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.5V to +18V
–0.5V to +16V
+16V
–0.5V to +16V
18mA
4.25mA
20mA
550mW
–20
°
to +75
°
C
–55
°
to +150
°
C
Note 1. Output Pin1, Pin2, Pin3, Pin4, and Pin6.
Electrical Characteristics:
(T
A
= +25
°
C, V
CC
= 16V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Input Voltage (LED ON)
LED 1
V
I(ON)1
V
I(ON)2
V
I(ON)3
V
I(ON)4
V
I(ON)5
–
–
1.12
V
LED 2
–
–
1.86
V
LED 3
–
–
3.10
V
LED 4
–
–
5.18
V
LED 5
–
–
8.66
V
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